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https://github.com/infiniteloopcloud/hyper

General HTTP helper library aims to be customizable.
https://github.com/infiniteloopcloud/hyper

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General HTTP helper library aims to be customizable.

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# Hyper

General HTTP helper library aims to be customizable.

- [Non-TLS](#non-tls)
- [TLS](#tls)
- [Bind request body](#bind-request-body)
- [Error handling](#error-handling)
- [Client](#client)

### Usage

#### Non-TLS

```go
package main

import (
"context"
"os"

"github.com/infiniteloopcloud/hyper"
"github.com/infiniteloopcloud/log"
)

func main() {
var h = hyper.HTTP{
PreHooks: []func(ctx context.Context){
preHookSetLogLevel,
},
Log: hyper.Logger{
Infof: log.Infof,
Errorf: log.Errorf,
},
Address: os.Getenv("SERVICE_HTTP_ADDRESS"),
Handler: chi.NewRouter(),
}

h.Run()
}

func preHookSetLogLevel(_ context.Context) {
log.SetLevel(func() uint8 {
return 1
}())
}
```

#### TLS

```go
package main

import (
"context"
"os"

"github.com/infiniteloopcloud/hyper"
"github.com/infiniteloopcloud/log"
)

func main() {
var h = hyper.HTTP{
PreHooks: []func(ctx context.Context){
preHookSetLogLevel,
},
Log: hyper.Logger{
Infof: log.Infof,
Errorf: log.Errorf,
},
Address: os.Getenv("SERVICE_HTTP_ADDRESS"),
Handler: chi.NewRouter(),
}

// NewEnvironmentTLS able to build PEM block based on the provided information
if os.Getenv("SERVICE_TLS_SUPPORT") == "PEM_BUILDER" {
h.TLSEnabled = true
h.TLS = hyper.NewEnvironmentTLS(hyper.EnvironmentTLSOpts{
TLSCert: "SERVICE_TLS_CERT",
TLSCertBlockType: "SERVICE_TLS_CERT_BLOCK_NAME",
TLSKey: "SERVICE_TLS_KEY",
TLSKeyBlockType: "SERVICE_TLS_KEY_BLOCK_NAME",
})
// NewFileTLS reads the files from the provided location
} else if os.Getenv("SERVICE_TLS_SUPPORT") == "FILE" {
h.TLSEnabled = true
h.TLS = hyper.NewFileTLS(hyper.FileTLSOpts{
TLSCertPath: "SERVICE_TLS_CERT",
TLSKeyPath: "SERVICE_TLS_KEY",
})
}

h.Run()
}

func preHookSetLogLevel(_ context.Context) {
log.SetLevel(func() uint8 {
return 1
}())
}
```

#### Bind request body

```go
package main

import (
"net/http"

"github.com/infiniteloopcloud/hyper"
)

type Request struct {
Field1 string `json:"field1"`
}

func main() {}

func handler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()

var reqStruct Request
// Bind the JSON request
if err := hyper.Bind(ctx, r, &reqStruct); err != nil {
hyper.ReturnBadRequest(ctx, w, "invalid request body", err)
return
}

w.WriteHeader(http.StatusOK)
}
```

#### Error handling

There are pure error wrappers which wraps the error into a weird.Error:

- `BadRequest(...)`
- `NotFound(...)`
- `Unauthorized(...)`
- `Forbidden(...)`
- `InternalServerError(...)`

All of these has a Return{...} function if the function has access to `http.ResponseWriter`

- `ReturnBadRequest(...)`
- `ReturnNotFound(...)`
- `ReturnUnauthorized(...)`
- `ReturnForbidden(...)`
- `ReturnInternalServerError(...)`

```go
package main

import (
"net/http"

"github.com/infiniteloopcloud/hyper"
)

type Request struct {
Field1 string `json:"field1"`
}

func main() {}

func handler(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()

var reqStruct Request
if err := hyper.Bind(ctx, r, &reqStruct); err != nil {
// Return bad request will write the response into w
hyper.ReturnBadRequest(ctx, w, "invalid request body", err)
return
}

w.WriteHeader(http.StatusOK)
}
```

#### Client

HTTP client-side helper functions.

```go
package main

import (
"context"

"github.com/infiniteloopcloud/hyper"
)

type Response struct {
Field1 string `json:"f"`
}

func main() {
ctx := context.Background()
var resp Response
hyper.Request(ctx, &resp, hyper.RequestOpts{
Method: "POST",
Endpoint: "/api/endpoint",
// RequestStruct: req,
Client: hyper.Client(),
})
// handle err
// use resp
}
```