Fee calculation not supported for local or dev network

[tried2bwhatuwantme2b]

Description

I run polkadot local node and send transaction. Than invoke {substrate-api-base-url}/blocks/{blockId} and can't get fee of this transaction - there is no appropriate field (extrinsics.info.partialFee) . Instead of this filed there is another one: extrinsics.info.error:"Fee calculation not supported for this network".

Steps to Reproduce

1. here is a docker-compose file to start node and substrate api:

version: '3.8'

services:
  polkadot-node:
    image: parity/polkadot:latest
    container_name: polkadot-node
    ports:
      - "9944:9944"  # WS RPC
      - "9933:9933"  # HTTP RPC
      - "30333:30333"  # P2P
    command:
      - --dev
      - --unsafe-rpc-external
      - --rpc-methods=unsafe
      - --rpc-external
      - --rpc-cors=all 
      - --rpc-max-connections=100 
    networks:
      - substrate-net

  substrate-api-sidecar:
    image: parity/substrate-api-sidecar:latest
    container_name: substrate-api-sidecar
    ports:
      - "8080:8080"
    environment:
      - SAS_SUBSTRATE_URL=ws://polkadot-node:9944
      - SAS_SUBSTRATE_WS_URL=ws://polkadot-node:9944
      - SAS_LOG_LEVEL=debug
      - SAS_EXPRESS_PORT=8080
      - SAS_EXPRESS_HOST=0.0.0.0
    depends_on:
      - polkadot-node
    networks:
      - substrate-net

networks:
  substrate-net:
    driver: bridge

2. execute command: docker-compose up

3. send some transaction. for example send 50000000000 from //alice test account to "5DBt7FyG9NJV64ncfagNcGPGFqnnXa4M5bkWMaSGQcCxfUaJ"

4. wait transaction appears in the blockchain

5. invoke {substrate-api-base-url}/blocks/{blockId}

Expected vs. Actual Behavior

Expected
extrinsics.info.partialFee

Actual

"extrinsics": [
  {
    "method": { ... },
    "signature": { ... },
    "info": {
      "error": "Fee calculation not supported for this network"
    }
  }
]

[andrew-ifrita]

Would you mind fixing the formatting in the issue so it is easier to pull out the docker-compose info in order to recreate the issue locally?

Even better would be sharing a simple bash script for the minimal reproducible error that recreates the issue by spinning up the environment and making the exact requests via curl or similar.

[tried2bwhatuwantme2b]

Would you mind fixing the formatting in the issue so it is easier to pull out the docker-compose info in order to recreate the issue locally?

Even better would be sharing a simple bash script for the minimal reproducible error that recreates the issue by spinning up the environment and making the exact requests via curl or similar.

tried to do my best. but as for bash script - I just don't know how to do it (for example how to send transaction via curl)

[TarikGul]

I believe this issue stems here. There is no matching config for the specName from the polkadot dev node - so it resolves to the default config which does not have any minCalcFeeRuntime set. So it wont calculate fees.

[tried2bwhatuwantme2b]

@TarikGul , could you give an advice for me? is there a fast way to avoid this problem? maybe somehow set this value via environment variable or something else

[TarikGul]

We currently don't have a way to externally add it (which should be fixed), but if you have the ability to change the specName in the dev node to polkadot - that would probably fix it

[tried2bwhatuwantme2b]

if somebody will have the same problem - you can try to build custom image of sidecar-api with little fix like in example below:

1. create Dockerfile:

FROM parity/substrate-api-sidecar:latest

USER root

# Install tools 
RUN apk add --no-cache sed

# Edit built JavaScript file defaultControllers.js
RUN sed -i 's/minCalcFeeRuntime:null/minCalcFeeRuntime:1/g' /usr/src/app/build/src/chains-config/defaultControllers.js
RUN sed -i 's/minCalcFeeRuntime: null/minCalcFeeRuntime: 1/g' /usr/src/app/build/src/chains-config/defaultControllers.js
RUN sed -i 's/new QueryFeeDetailsCache(null,null)/new QueryFeeDetailsCache(1,null)/g' /usr/src/app/build/src/chains-config/defaultControllers.js
RUN sed -i 's/new QueryFeeDetailsCache(null, null)/new QueryFeeDetailsCache(1, null)/g' /usr/src/app/build/src/chains-config/defaultControllers.js

USER node

CMD ["node", "build/src/main.js"]

2. build it like that:

 docker build -t my-substrate-api-sidecar:latest .