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Merge pull request hyperledger-indy#940 from Artemkaaas/feature/anoncreds-filtering
Integrate tags based search to Anoncreds workflow
2 parents 05e2313 + 125884f commit 8ed05a9

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‎doc/design/002-anoncreds/README.md‎

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‎doc/design/011-wallet-query-language/README.md‎

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## Wallet Query Language
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This language will be used to define queries in Non-secrets, Anoncreds search APIs.
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```Rust
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query = {subquery}
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subquery = {subquery, ..., subquery} - WHERE subquery AND ... AND subquery
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subquery = $or: [{subquery},..., {subquery}] - WHERE subquery OR ... OR subquery
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subquery = $not: {subquery} - Where NOT (subquery)
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subquery = "tagName": tagValue - WHERE tagName == tagValue
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subquery = "tagName": {$neq: tagValue} - WHERE tagName != tagValue
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subquery = "tagName": {$gt: tagValue} - WHERE tagName > tagValue
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subquery = "tagName": {$gte: tagValue} - WHERE tagName >= tagValue
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subquery = "tagName": {$lt: tagValue} - WHERE tagName < tagValue
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subquery = "tagName": {$lte: tagValue} - WHERE tagName <= tagValue
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subquery = "tagName": {$like: tagValue} - WHERE tagName LIKE tagValue
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subquery = "tagName": {$in: [tagValue, ..., tagValue]} - WHERE tagName IN (tagValue, ..., tagValue)
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```

‎libindy/include/indy_anoncreds.h‎

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indy_error_t err,
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const char* credentials_json)
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);
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extern indy_error_t indy_prover_get_credential(indy_handle_t command_handle,
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indy_handle_t wallet_handle,
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const char * cred_id,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err,
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const char* credential_json)
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);
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extern indy_error_t indy_prover_search_credentials(indy_handle_t command_handle,
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indy_handle_t wallet_handle,
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const char * query_json,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err,
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indy_handle_t search_handle,
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indy_u32_t total_count)
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);
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extern indy_error_t indy_prover_fetch_credentials(indy_handle_t command_handle,
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indy_handle_t search_handle,
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indy_u32_t count,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err,
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const char* credentials_json)
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);
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extern indy_error_t indy_prover_close_credentials_search(indy_handle_t command_handle,
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indy_handle_t search_handle,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err)
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);
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extern indy_error_t indy_prover_get_credentials_for_proof_req(indy_handle_t command_handle,
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indy_handle_t wallet_handle,
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const char * proof_request_json,
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const char* credentials_json)
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);
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extern indy_error_t indy_prover_search_credentials_for_proof_req(indy_handle_t command_handle,
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indy_handle_t wallet_handle,
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const char * proof_request_json,
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const char * extra_query_json,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err,
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indy_handle_t search_handle)
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);
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extern indy_error_t indy_prover_fetch_credentials_for_proof_req(indy_handle_t command_handle,
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indy_handle_t search_handle,
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const char* item_referent,
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indy_u32_t count,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err,
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const char* credentials_json)
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);
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extern indy_error_t indy_prover_close_credentials_search_for_proof_req(indy_handle_t command_handle,
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indy_handle_t search_handle,
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void (*cb)(indy_handle_t xcommand_handle,
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indy_error_t err)
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);
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extern indy_error_t indy_prover_create_proof(indy_handle_t command_handle,
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indy_handle_t wallet_handle,
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const char * proof_req_json,

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