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form3.go
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form3.go
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package form3
import (
"context"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"net/http"
"net/url"
"os"
genClient "github.com/form3tech-oss/go-form3/v2/pkg/generated/client"
rc "github.com/go-openapi/runtime/client"
"github.com/go-openapi/strfmt"
)
const (
ReqMimeType = "application/vnd.api+json"
)
type F3 struct {
genClient.Form3PublicAPI
Defaults *ClientDefaults
}
func New(host, pubKeyID string, privateKey *rsa.PrivateKey, orgID string) *F3 {
u, err := url.Parse(host)
if err != nil {
panic(err)
}
config := NewRequestSigningClientConfig(pubKeyID, privateKey)
httpClient := NewRequestSigningHTTPClient(config)
return newF3(u, httpClient, orgID)
}
func NewFromEnv() *F3 {
privKeyInPEM := getEnv("FORM3_PRIVATE_KEY")
block, _ := pem.Decode([]byte(privKeyInPEM))
if block == nil || block.Type != "RSA PRIVATE KEY" {
panic("failed to decode PEM block containing private key")
}
privateKey, err := x509.ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
panic(err)
}
return New(
getEnv("FORM3_HOST"),
getEnv("FORM3_PUBLIC_KEY_ID"),
privateKey,
getEnv("FORM3_ORGANISATION_ID"),
)
}
func NewWithTokenBasedAuth(host, clientID, secret, orgID string) *F3 {
u, err := url.Parse(host)
if err != nil {
panic(err)
}
config := NewTokenBasedClientConfig(clientID, secret, u)
httpClient := NewTokenBasedHTTPClient(config)
return newF3(u, httpClient, orgID)
}
func NewWithTokenBasedAuthFromEnv() *F3 {
return NewWithTokenBasedAuth(
getEnv("FORM3_HOST"),
getEnv("FORM3_CLIENT_ID"),
getEnv("FORM3_CLIENT_SECRET"),
getEnv("FORM3_ORGANISATION_ID"),
)
}
func newF3(u *url.URL, c *http.Client, orgID string) *F3 {
c.Transport = &addUserAgent{c.Transport}
rt := rc.NewWithClient(u.Host, "/v1", []string{u.Scheme}, c)
rt.Context = context.Background()
defaults := NewClientDefaults()
orgUUID := strfmt.UUID(orgID)
defaults.OrganisationId = &orgUUID
pubClient := genClient.New(rt, strfmt.Default, defaults)
return &F3{
Form3PublicAPI: *pubClient,
Defaults: defaults,
}
}
func getEnv(name string) string {
env, ok := os.LookupEnv(name)
if !ok {
panic("Missing required environment variable " + name)
}
return env
}