Replace failure with thiserror (#70)

Author: msrd0

influxdb/Cargo.toml

@@ -16,15 +16,15 @@ repository = "https://github.com/Empty2k12/influxdb-rust"
 travis-ci = { repository = "Empty2k12/influxdb-rust", branch = "master" }
 
 [dependencies]
-chrono = { version = "0.4.11", features = ["serde"] } 
-failure = "0.1.7"
+chrono = { version = "0.4.11", features = ["serde"] }
 futures = "0.3.4"
+lazy_static = "1.4.0"
 influxdb_derive = { version = "0.1.0", optional = true }
+regex = "1.3.5"
 reqwest = { version = "0.10.4", features = ["json"] }
 serde = { version = "1.0.104", features = ["derive"], optional = true }
 serde_json = { version = "1.0.48", optional = true }
-regex = "1.3.5"
-lazy_static = "1.4.0"
+thiserror = "1.0"
 
 [features]
 use-serde = ["serde", "serde_json"]

influxdb/src/client/mod.rs

@@ -166,7 +166,7 @@ impl Client {
     /// use std::time::{SystemTime, UNIX_EPOCH};
     ///
     /// # #[tokio::main]
-    /// # async fn main() -> Result<(), failure::Error> {
+    /// # async fn main() -> Result<(), influxdb::Error> {
     /// let start = SystemTime::now();
     /// let since_the_epoch = start
     ///   .duration_since(UNIX_EPOCH)

influxdb/src/error.rs

@@ -1,39 +1,41 @@
 //! Errors that might happen in the crate
 
-#[derive(Debug, Fail)]
+use thiserror::Error;
+
+#[derive(Debug, Error)]
 pub enum Error {
-    #[fail(display = "query is invalid: {}", error)]
+    #[error("query is invalid: {error}")]
     /// Error happens when a query is invalid
     InvalidQueryError { error: String },
 
-    #[fail(display = "Failed to build URL: {}", error)]
+    #[error("Failed to build URL: {error}")]
     /// Error happens when a query is invalid
     UrlConstructionError { error: String },
 
-    #[fail(display = "http protocol error: {}", error)]
+    #[error("http protocol error: {error}")]
     /// Error happens when a query is invalid
     ProtocolError { error: String },
 
-    #[fail(display = "http protocol error: {}", error)]
+    #[error("http protocol error: {error}")]
     /// Error happens when Serde cannot deserialize the response
     DeserializationError { error: String },
 
-    #[fail(display = "InfluxDB encountered the following error: {}", error)]
+    #[error("InfluxDB encountered the following error: {error}")]
     /// Error which has happened inside InfluxDB
     DatabaseError { error: String },
 
-    #[fail(display = "authentication error. No or incorrect credentials")]
+    #[error("authentication error. No or incorrect credentials")]
     /// Error happens when no or incorrect credentials are used. `HTTP 401 Unauthorized`
     AuthenticationError,
 
-    #[fail(display = "authorization error. User not authorized")]
+    #[error("authorization error. User not authorized")]
     /// Error happens when the supplied user is not authorized. `HTTP 403 Forbidden`
     AuthorizationError,
 
-    #[fail(display = "connection error: {}", error)]
+    #[error("connection error: {error}")]
     /// Error happens when reqwest fails
     ConnectionError {
-        #[fail(cause)]
+        #[from]
         error: reqwest::Error,
     },
 }

influxdb/src/integrations/serde_integration/mod.rs

@@ -23,7 +23,7 @@
 //! }
 //!
 //! # #[tokio::main]
-//! # async fn main() -> Result<(), failure::Error> {
+//! # async fn main() -> Result<(), influxdb::Error> {
 //! let client = Client::new("http://localhost:8086", "test");
 //! let query = Query::raw_read_query(
 //!     "SELECT temperature FROM /weather_[a-z]*$/ WHERE time > now() - 1m ORDER BY DESC",

influxdb/src/lib.rs

@@ -73,9 +73,6 @@
 
 #![allow(clippy::needless_doctest_main)]
 
-#[macro_use]
-extern crate failure;
-
 mod client;
 mod error;
 mod query;